Bearings – Rotary bearing – Fluid bearing
Reexamination Certificate
2007-11-20
2007-11-20
Footland, Lenard A. (Department: 3682)
Bearings
Rotary bearing
Fluid bearing
Reexamination Certificate
active
11326826
ABSTRACT:
An inner space of a housing sealed with a seal member as well as internal pores of a bearing member (pores in a porous structure) are filled with a lubricating oil without the presence of air, so that the oil surface of the lubricating oil is within a seal space. Under a reduced pressure of 100 Torr, no lubricating oil leaks outside of the housing even at any attitude of the fluid lubricated bearing device such as normal, inverted, or horizontal attitude.
REFERENCES:
patent: 6250807 (2001-06-01), Mori et al.
patent: 62-075121 (1987-04-01), None
patent: 10-322972 (1998-12-01), None
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patent: 2000-002236 (2000-01-01), None
patent: 2000-032703 (2000-01-01), None
patent: 2001-074042 (2001-03-01), None
patent: 2001-152174 (2001-06-01), None
patent: 2002-021841 (2002-01-01), None
Kawase Tatsuo
Kurimura Tetsuya
Yamamoto Yasuhiro
Footland Lenard A.
J.C. Patents
NTN Corporation
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